drivers/media/dvb/ttpci/av7110_av.c

   1 /*
   2  * av7110_av.c: audio and video MPEG decoder stuff
   3  *
   4  * Copyright (C) 1999-2002 Ralph  Metzler
   5  *                       & Marcus Metzler for convergence integrated media GmbH
   6  *
   7  * originally based on code by:
   8  * Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de>
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  25  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
  26  *
  27  *
  28  * the project's page is at http://www.linuxtv.org/
  29  */
  30
  31 #include <linux/types.h>
  32 #include <linux/kernel.h>
  33 #include <linux/string.h>
  34 #include <linux/delay.h>
  35 #include <linux/fs.h>
  36
  37 #include "av7110.h"
  38 #include "av7110_hw.h"
  39 #include "av7110_av.h"
  40 #include "av7110_ipack.h"
  41
  42 /* MPEG-2 (ISO 13818 / H.222.0) stream types */
  43 #define PROG_STREAM_MAP  0xBC
  44 #define PRIVATE_STREAM1  0xBD
  45 #define PADDING_STREAM   0xBE
  46 #define PRIVATE_STREAM2  0xBF
  47 #define AUDIO_STREAM_S   0xC0
  48 #define AUDIO_STREAM_E   0xDF
  49 #define VIDEO_STREAM_S   0xE0
  50 #define VIDEO_STREAM_E   0xEF
  51 #define ECM_STREAM       0xF0
  52 #define EMM_STREAM       0xF1
  53 #define DSM_CC_STREAM    0xF2
  54 #define ISO13522_STREAM  0xF3
  55 #define PROG_STREAM_DIR  0xFF
  56
  57 #define PTS_DTS_FLAGS    0xC0
  58
  59 //pts_dts flags
  60 #define PTS_ONLY         0x80
  61 #define PTS_DTS          0xC0
  62 #define TS_SIZE          188
  63 #define TRANS_ERROR      0x80
  64 #define PAY_START        0x40
  65 #define TRANS_PRIO       0x20
  66 #define PID_MASK_HI      0x1F
  67 //flags
  68 #define TRANS_SCRMBL1    0x80
  69 #define TRANS_SCRMBL2    0x40
  70 #define ADAPT_FIELD      0x20
  71 #define PAYLOAD          0x10
  72 #define COUNT_MASK       0x0F
  73
  74 // adaptation flags
  75 #define DISCON_IND       0x80
  76 #define RAND_ACC_IND     0x40
  77 #define ES_PRI_IND       0x20
  78 #define PCR_FLAG         0x10
  79 #define OPCR_FLAG        0x08
  80 #define SPLICE_FLAG      0x04
  81 #define TRANS_PRIV       0x02
  82 #define ADAP_EXT_FLAG    0x01
  83
  84 // adaptation extension flags
  85 #define LTW_FLAG         0x80
  86 #define PIECE_RATE       0x40
  87 #define SEAM_SPLICE      0x20
  88
  89
  90 static void p_to_t(u8 const *buf, long int length, u16 pid,
  91                    u8 *counter, struct dvb_demux_feed *feed);
  92 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len);
  93
  94
  95 int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
  96 {
  97         struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
  98
  99         if (!(dvbdmxfeed->ts_type & TS_PACKET))
 100                 return 0;
 101         if (buf[3] == 0xe0)      // video PES do not have a length in TS
 102                 buf[4] = buf[5] = 0;
 103         if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
 104                 return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
 105                                          &dvbdmxfeed->feed.ts, DMX_OK);
 106         else
 107                 return dvb_filter_pes2ts(p2t, buf, len, 1);
 108 }
 109
 110 static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
 111 {
 112         struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
 113
 114         dvbdmxfeed->cb.ts(data, 188, NULL, 0,
 115                           &dvbdmxfeed->feed.ts, DMX_OK);
 116         return 0;
 117 }
 118
 119 int av7110_av_start_record(struct av7110 *av7110, int av,
 120                            struct dvb_demux_feed *dvbdmxfeed)
 121 {
 122         int ret = 0;
 123         struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
 124
 125         dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
 126
 127         if (av7110->playing || (av7110->rec_mode & av))
 128                 return -EBUSY;
 129         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 130         dvbdmx->recording = 1;
 131         av7110->rec_mode |= av;
 132
 133         switch (av7110->rec_mode) {
 134         case RP_AUDIO:
 135                 dvb_filter_pes2ts_init(&av7110->p2t[0],
 136                                        dvbdmx->pesfilter[0]->pid,
 137                                        dvb_filter_pes2ts_cb,
 138                                        (void *) dvbdmx->pesfilter[0]);
 139                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
 140                 break;
 141
 142         case RP_VIDEO:
 143                 dvb_filter_pes2ts_init(&av7110->p2t[1],
 144                                        dvbdmx->pesfilter[1]->pid,
 145                                        dvb_filter_pes2ts_cb,
 146                                        (void *) dvbdmx->pesfilter[1]);
 147                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
 148                 break;
 149
 150         case RP_AV:
 151                 dvb_filter_pes2ts_init(&av7110->p2t[0],
 152                                        dvbdmx->pesfilter[0]->pid,
 153                                        dvb_filter_pes2ts_cb,
 154                                        (void *) dvbdmx->pesfilter[0]);
 155                 dvb_filter_pes2ts_init(&av7110->p2t[1],
 156                                        dvbdmx->pesfilter[1]->pid,
 157                                        dvb_filter_pes2ts_cb,
 158                                        (void *) dvbdmx->pesfilter[1]);
 159                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
 160                 break;
 161         }
 162         return ret;
 163 }
 164
 165 int av7110_av_start_play(struct av7110 *av7110, int av)
 166 {
 167         int ret = 0;
 168         dprintk(2, "av7110:%p, \n", av7110);
 169
 170         if (av7110->rec_mode)
 171                 return -EBUSY;
 172         if (av7110->playing & av)
 173                 return -EBUSY;
 174
 175         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 176
 177         if (av7110->playing == RP_NONE) {
 178                 av7110_ipack_reset(&av7110->ipack[0]);
 179                 av7110_ipack_reset(&av7110->ipack[1]);
 180         }
 181
 182         av7110->playing |= av;
 183         switch (av7110->playing) {
 184         case RP_AUDIO:
 185                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
 186                 break;
 187         case RP_VIDEO:
 188                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
 189                 av7110->sinfo = 0;
 190                 break;
 191         case RP_AV:
 192                 av7110->sinfo = 0;
 193                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
 194                 break;
 195         }
 196         return ret;
 197 }
 198
 199 int av7110_av_stop(struct av7110 *av7110, int av)
 200 {
 201         int ret = 0;
 202         dprintk(2, "av7110:%p, \n", av7110);
 203
 204         if (!(av7110->playing & av) && !(av7110->rec_mode & av))
 205                 return 0;
 206         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 207         if (av7110->playing) {
 208                 av7110->playing &= ~av;
 209                 switch (av7110->playing) {
 210                 case RP_AUDIO:
 211                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
 212                         break;
 213                 case RP_VIDEO:
 214                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
 215                         break;
 216                 case RP_NONE:
 217                         ret = av7110_set_vidmode(av7110, av7110->vidmode);
 218                         break;
 219                 }
 220         } else {
 221                 av7110->rec_mode &= ~av;
 222                 switch (av7110->rec_mode) {
 223                 case RP_AUDIO:
 224                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
 225                         break;
 226                 case RP_VIDEO:
 227                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
 228                         break;
 229                 case RP_NONE:
 230                         break;
 231                 }
 232         }
 233         return ret;
 234 }
 235
 236
 237 int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
 238 {
 239         int len;
 240         u32 sync;
 241         u16 blen;
 242
 243         if (!dlen) {
 244                 wake_up(&buf->queue);
 245                 return -1;
 246         }
 247         while (1) {
 248                 len = dvb_ringbuffer_avail(buf);
 249                 if (len < 6) {
 250                         wake_up(&buf->queue);
 251                         return -1;
 252                 }
 253                 sync =  DVB_RINGBUFFER_PEEK(buf, 0) << 24;
 254                 sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
 255                 sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
 256                 sync |= DVB_RINGBUFFER_PEEK(buf, 3);
 257
 258                 if (((sync &~ 0x0f) == 0x000001e0) ||
 259                     ((sync &~ 0x1f) == 0x000001c0) ||
 260                     (sync == 0x000001bd))
 261                         break;
 262                 printk("resync\n");
 263                 DVB_RINGBUFFER_SKIP(buf, 1);
 264         }
 265         blen =  DVB_RINGBUFFER_PEEK(buf, 4) << 8;
 266         blen |= DVB_RINGBUFFER_PEEK(buf, 5);
 267         blen += 6;
 268         if (len < blen || blen > dlen) {
 269                 //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
 270                 wake_up(&buf->queue);
 271                 return -1;
 272         }
 273
 274         dvb_ringbuffer_read(buf, dest, (size_t) blen);
 275
 276         dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
 277                (unsigned long) buf->pread, (unsigned long) buf->pwrite);
 278         wake_up(&buf->queue);
 279         return blen;
 280 }
 281
 282
 283 int av7110_set_volume(struct av7110 *av7110, int volleft, int volright)
 284 {
 285         int err, vol, val, balance = 0;
 286
 287         dprintk(2, "av7110:%p, \n", av7110);
 288
 289         av7110->mixer.volume_left = volleft;
 290         av7110->mixer.volume_right = volright;
 291
 292         switch (av7110->adac_type) {
 293         case DVB_ADAC_TI:
 294                 volleft = (volleft * 256) / 1036;
 295                 volright = (volright * 256) / 1036;
 296                 if (volleft > 0x3f)
 297                         volleft = 0x3f;
 298                 if (volright > 0x3f)
 299                         volright = 0x3f;
 300                 if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
 301                         return err;
 302                 return SendDAC(av7110, 4, volright);
 303
 304         case DVB_ADAC_CRYSTAL:
 305                 volleft = 127 - volleft / 2;
 306                 volright = 127 - volright / 2;
 307                 i2c_writereg(av7110, 0x20, 0x03, volleft);
 308                 i2c_writereg(av7110, 0x20, 0x04, volright);
 309                 return 0;
 310
 311         case DVB_ADAC_MSP34x0:
 312                 vol  = (volleft > volright) ? volleft : volright;
 313                 val     = (vol * 0x73 / 255) << 8;
 314                 if (vol > 0)
 315                        balance = ((volright - volleft) * 127) / vol;
 316                 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 317                 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 318                 msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
 319                 return 0;
 320
 321         case DVB_ADAC_MSP34x5:
 322                 vol = (volleft > volright) ? volleft : volright;
 323                 val = (vol * 0x73 / 255) << 8;
 324                 if (vol > 0)
 325                         balance = ((volright - volleft) * 127) / vol;
 326                 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 327                 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 328                 return 0;
 329         }
 330
 331         return 0;
 332 }
 333
 334 int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
 335 {
 336         int ret;
 337         dprintk(2, "av7110:%p, \n", av7110);
 338
 339         ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
 340
 341         if (!ret && !av7110->playing) {
 342                 ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
 343                            av7110->pids[DMX_PES_AUDIO],
 344                            av7110->pids[DMX_PES_TELETEXT],
 345                            0, av7110->pids[DMX_PES_PCR]);
 346                 if (!ret)
 347                         ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
 348         }
 349         return ret;
 350 }
 351
 352
 353 static enum av7110_video_mode sw2mode[16] = {
 354         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 355         AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
 356         AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
 357         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 358         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 359         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 360         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 361         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 362 };
 363
 364 static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
 365 {
 366         int i;
 367         int hsize, vsize;
 368         int sw;
 369         u8 *p;
 370         int ret = 0;
 371
 372         dprintk(2, "av7110:%p, \n", av7110);
 373
 374         if (av7110->sinfo)
 375                 return 0;
 376         for (i = 7; i < count - 10; i++) {
 377                 p = buf + i;
 378                 if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
 379                         continue;
 380                 p += 4;
 381                 hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
 382                 vsize = ((p[1] &0x0F) << 8) | (p[2]);
 383                 sw = (p[3] & 0x0F);
 384                 ret = av7110_set_vidmode(av7110, sw2mode[sw]);
 385                 if (!ret) {
 386                         dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
 387                         av7110->sinfo = 1;
 388                 }
 389                 break;
 390         }
 391         return ret;
 392 }
 393
 394
 395 /****************************************************************************
 396  * I/O buffer management and control
 397  ****************************************************************************/
 398
 399 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
 400                                          const u8 *buf, unsigned long count)
 401 {
 402         unsigned long todo = count;
 403         int free;
 404
 405         while (todo > 0) {
 406                 if (dvb_ringbuffer_free(rbuf) < 2048) {
 407                         if (wait_event_interruptible(rbuf->queue,
 408                                                      (dvb_ringbuffer_free(rbuf) >= 2048)))
 409                                 return count - todo;
 410                 }
 411                 free = dvb_ringbuffer_free(rbuf);
 412                 if (free > todo)
 413                         free = todo;
 414                 dvb_ringbuffer_write(rbuf, buf, free);
 415                 todo -= free;
 416                 buf += free;
 417         }
 418
 419         return count - todo;
 420 }
 421
 422 static void play_video_cb(u8 *buf, int count, void *priv)
 423 {
 424         struct av7110 *av7110 = (struct av7110 *) priv;
 425         dprintk(2, "av7110:%p, \n", av7110);
 426
 427         if ((buf[3] & 0xe0) == 0xe0) {
 428                 get_video_format(av7110, buf, count);
 429                 aux_ring_buffer_write(&av7110->avout, buf, count);
 430         } else
 431                 aux_ring_buffer_write(&av7110->aout, buf, count);
 432 }
 433
 434 static void play_audio_cb(u8 *buf, int count, void *priv)
 435 {
 436         struct av7110 *av7110 = (struct av7110 *) priv;
 437         dprintk(2, "av7110:%p, \n", av7110);
 438
 439         aux_ring_buffer_write(&av7110->aout, buf, count);
 440 }
 441
 442
 443 #define FREE_COND_TS (dvb_ringbuffer_free(rb) >= 4096)
 444
 445 static ssize_t ts_play(struct av7110 *av7110, const char __user *buf,
 446                        unsigned long count, int nonblock, int type)
 447 {
 448         struct dvb_ringbuffer *rb;
 449         u8 *kb;
 450         unsigned long todo = count;
 451
 452         dprintk(2, "%s: type %d cnt %lu\n", __func__, type, count);
 453
 454         rb = (type) ? &av7110->avout : &av7110->aout;
 455         kb = av7110->kbuf[type];
 456
 457         if (!kb)
 458                 return -ENOBUFS;
 459
 460         if (nonblock && !FREE_COND_TS)
 461                 return -EWOULDBLOCK;
 462
 463         while (todo >= TS_SIZE) {
 464                 if (!FREE_COND_TS) {
 465                         if (nonblock)
 466                                 return count - todo;
 467                         if (wait_event_interruptible(rb->queue, FREE_COND_TS))
 468                                 return count - todo;
 469                 }
 470                 if (copy_from_user(kb, buf, TS_SIZE))
 471                         return -EFAULT;
 472                 write_ts_to_decoder(av7110, type, kb, TS_SIZE);
 473                 todo -= TS_SIZE;
 474                 buf += TS_SIZE;
 475         }
 476
 477         return count - todo;
 478 }
 479
 480
 481 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
 482                    dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
 483
 484 static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
 485                         unsigned long count, int nonblock, int type)
 486 {
 487         unsigned long todo = count, n;
 488         dprintk(2, "av7110:%p, \n", av7110);
 489
 490         if (!av7110->kbuf[type])
 491                 return -ENOBUFS;
 492
 493         if (nonblock && !FREE_COND)
 494                 return -EWOULDBLOCK;
 495
 496         while (todo > 0) {
 497                 if (!FREE_COND) {
 498                         if (nonblock)
 499                                 return count - todo;
 500                         if (wait_event_interruptible(av7110->avout.queue,
 501                                                      FREE_COND))
 502                                 return count - todo;
 503                 }
 504                 n = todo;
 505                 if (n > IPACKS * 2)
 506                         n = IPACKS * 2;
 507                 if (copy_from_user(av7110->kbuf[type], buf, n))
 508                         return -EFAULT;
 509                 av7110_ipack_instant_repack(av7110->kbuf[type], n,
 510                                             &av7110->ipack[type]);
 511                 todo -= n;
 512                 buf += n;
 513         }
 514         return count - todo;
 515 }
 516
 517 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
 518                         unsigned long count, int nonblock, int type)
 519 {
 520         unsigned long todo = count, n;
 521         dprintk(2, "av7110:%p, \n", av7110);
 522
 523         if (!av7110->kbuf[type])
 524                 return -ENOBUFS;
 525
 526         if (nonblock && !FREE_COND)
 527                 return -EWOULDBLOCK;
 528
 529         while (todo > 0) {
 530                 if (!FREE_COND) {
 531                         if (nonblock)
 532                                 return count - todo;
 533                         if (wait_event_interruptible(av7110->avout.queue,
 534                                                      FREE_COND))
 535                                 return count - todo;
 536                 }
 537                 n = todo;
 538                 if (n > IPACKS * 2)
 539                         n = IPACKS * 2;
 540                 av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
 541                 todo -= n;
 542                 buf += n;
 543         }
 544         return count - todo;
 545 }
 546
 547 static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
 548                          unsigned long count, int nonblock, int type)
 549 {
 550         unsigned long todo = count, n;
 551         dprintk(2, "av7110:%p, \n", av7110);
 552
 553         if (!av7110->kbuf[type])
 554                 return -ENOBUFS;
 555         if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
 556                 return -EWOULDBLOCK;
 557
 558         while (todo > 0) {
 559                 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
 560                         if (nonblock)
 561                                 return count - todo;
 562                         if (wait_event_interruptible(av7110->aout.queue,
 563                                         (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
 564                                 return count-todo;
 565                 }
 566                 n = todo;
 567                 if (n > IPACKS * 2)
 568                         n = IPACKS * 2;
 569                 if (copy_from_user(av7110->kbuf[type], buf, n))
 570                         return -EFAULT;
 571                 av7110_ipack_instant_repack(av7110->kbuf[type], n,
 572                                             &av7110->ipack[type]);
 573                 todo -= n;
 574                 buf += n;
 575         }
 576         return count - todo;
 577 }
 578
 579 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
 580 {
 581         memset(p->pes, 0, TS_SIZE);
 582         p->counter = 0;
 583         p->pos = 0;
 584         p->frags = 0;
 585         if (feed)
 586                 p->feed = feed;
 587 }
 588
 589 static void clear_p2t(struct av7110_p2t *p)
 590 {
 591         memset(p->pes, 0, TS_SIZE);
 592 //      p->counter = 0;
 593         p->pos = 0;
 594         p->frags = 0;
 595 }
 596
 597
 598 static int find_pes_header(u8 const *buf, long int length, int *frags)
 599 {
 600         int c = 0;
 601         int found = 0;
 602
 603         *frags = 0;
 604
 605         while (c < length - 3 && !found) {
 606                 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
 607                     buf[c + 2] == 0x01) {
 608                         switch ( buf[c + 3] ) {
 609                         case PROG_STREAM_MAP:
 610                         case PRIVATE_STREAM2:
 611                         case PROG_STREAM_DIR:
 612                         case ECM_STREAM     :
 613                         case EMM_STREAM     :
 614                         case PADDING_STREAM :
 615                         case DSM_CC_STREAM  :
 616                         case ISO13522_STREAM:
 617                         case PRIVATE_STREAM1:
 618                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 619                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 620                                 found = 1;
 621                                 break;
 622
 623                         default:
 624                                 c++;
 625                                 break;
 626                         }
 627                 } else
 628                         c++;
 629         }
 630         if (c == length - 3 && !found) {
 631                 if (buf[length - 1] == 0x00)
 632                         *frags = 1;
 633                 if (buf[length - 2] == 0x00 &&
 634                     buf[length - 1] == 0x00)
 635                         *frags = 2;
 636                 if (buf[length - 3] == 0x00 &&
 637                     buf[length - 2] == 0x00 &&
 638                     buf[length - 1] == 0x01)
 639                         *frags = 3;
 640                 return -1;
 641         }
 642
 643         return c;
 644 }
 645
 646 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
 647 {
 648         int c, c2, l, add;
 649         int check, rest;
 650
 651         c = 0;
 652         c2 = 0;
 653         if (p->frags){
 654                 check = 0;
 655                 switch(p->frags) {
 656                 case 1:
 657                         if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
 658                                 check = 1;
 659                                 c += 2;
 660                         }
 661                         break;
 662                 case 2:
 663                         if (buf[c] == 0x01) {
 664                                 check = 1;
 665                                 c++;
 666                         }
 667                         break;
 668                 case 3:
 669                         check = 1;
 670                 }
 671                 if (check) {
 672                         switch (buf[c]) {
 673                         case PROG_STREAM_MAP:
 674                         case PRIVATE_STREAM2:
 675                         case PROG_STREAM_DIR:
 676                         case ECM_STREAM     :
 677                         case EMM_STREAM     :
 678                         case PADDING_STREAM :
 679                         case DSM_CC_STREAM  :
 680                         case ISO13522_STREAM:
 681                         case PRIVATE_STREAM1:
 682                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 683                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 684                                 p->pes[0] = 0x00;
 685                                 p->pes[1] = 0x00;
 686                                 p->pes[2] = 0x01;
 687                                 p->pes[3] = buf[c];
 688                                 p->pos = 4;
 689                                 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
 690                                 c += (TS_SIZE - 4) - p->pos;
 691                                 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
 692                                 clear_p2t(p);
 693                                 break;
 694
 695                         default:
 696                                 c = 0;
 697                                 break;
 698                         }
 699                 }
 700                 p->frags = 0;
 701         }
 702
 703         if (p->pos) {
 704                 c2 = find_pes_header(buf + c, length - c, &p->frags);
 705                 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
 706                         l = c2+c;
 707                 else
 708                         l = (TS_SIZE - 4) - p->pos;
 709                 memcpy(p->pes + p->pos, buf, l);
 710                 c += l;
 711                 p->pos += l;
 712                 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
 713                 clear_p2t(p);
 714         }
 715
 716         add = 0;
 717         while (c < length) {
 718                 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
 719                 if (c2 >= 0) {
 720                         c2 += c + add;
 721                         if (c2 > c){
 722                                 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
 723                                 c = c2;
 724                                 clear_p2t(p);
 725                                 add = 0;
 726                         } else
 727                                 add = 1;
 728                 } else {
 729                         l = length - c;
 730                         rest = l % (TS_SIZE - 4);
 731                         l -= rest;
 732                         p_to_t(buf + c, l, pid, &p->counter, p->feed);
 733                         memcpy(p->pes, buf + c + l, rest);
 734                         p->pos = rest;
 735                         c = length;
 736                 }
 737         }
 738 }
 739
 740
 741 static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
 742 {
 743         int i;
 744         int c = 0;
 745         int fill;
 746         u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
 747
 748         fill = (TS_SIZE - 4) - length;
 749         if (pes_start)
 750                 tshead[1] = 0x40;
 751         if (fill)
 752                 tshead[3] = 0x30;
 753         tshead[1] |= (u8)((pid & 0x1F00) >> 8);
 754         tshead[2] |= (u8)(pid & 0x00FF);
 755         tshead[3] |= ((*counter)++ & 0x0F);
 756         memcpy(buf, tshead, 4);
 757         c += 4;
 758
 759         if (fill) {
 760                 buf[4] = fill - 1;
 761                 c++;
 762                 if (fill > 1) {
 763                         buf[5] = 0x00;
 764                         c++;
 765                 }
 766                 for (i = 6; i < fill + 4; i++) {
 767                         buf[i] = 0xFF;
 768                         c++;
 769                 }
 770         }
 771
 772         return c;
 773 }
 774
 775
 776 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
 777                    struct dvb_demux_feed *feed)
 778 {
 779         int l, pes_start;
 780         u8 obuf[TS_SIZE];
 781         long c = 0;
 782
 783         pes_start = 0;
 784         if (length > 3 &&
 785              buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
 786                 switch (buf[3]) {
 787                         case PROG_STREAM_MAP:
 788                         case PRIVATE_STREAM2:
 789                         case PROG_STREAM_DIR:
 790                         case ECM_STREAM     :
 791                         case EMM_STREAM     :
 792                         case PADDING_STREAM :
 793                         case DSM_CC_STREAM  :
 794                         case ISO13522_STREAM:
 795                         case PRIVATE_STREAM1:
 796                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 797                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 798                                 pes_start = 1;
 799                                 break;
 800
 801                         default:
 802                                 break;
 803                 }
 804
 805         while (c < length) {
 806                 memset(obuf, 0, TS_SIZE);
 807                 if (length - c >= (TS_SIZE - 4)){
 808                         l = write_ts_header2(pid, counter, pes_start,
 809                                              obuf, (TS_SIZE - 4));
 810                         memcpy(obuf + l, buf + c, TS_SIZE - l);
 811                         c += TS_SIZE - l;
 812                 } else {
 813                         l = write_ts_header2(pid, counter, pes_start,
 814                                              obuf, length - c);
 815                         memcpy(obuf + l, buf + c, TS_SIZE - l);
 816                         c = length;
 817                 }
 818                 feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, DMX_OK);
 819                 pes_start = 0;
 820         }
 821 }
 822
 823
 824 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len)
 825 {
 826         struct ipack *ipack = &av7110->ipack[type];
 827
 828         if (buf[1] & TRANS_ERROR) {
 829                 av7110_ipack_reset(ipack);
 830                 return -1;
 831         }
 832
 833         if (!(buf[3] & PAYLOAD))
 834                 return -1;
 835
 836         if (buf[1] & PAY_START)
 837                 av7110_ipack_flush(ipack);
 838
 839         if (buf[3] & ADAPT_FIELD) {
 840                 len -= buf[4] + 1;
 841                 buf += buf[4] + 1;
 842                 if (!len)
 843                         return 0;
 844         }
 845
 846         av7110_ipack_instant_repack(buf + 4, len - 4, ipack);
 847         return 0;
 848 }
 849
 850
 851 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
 852 {
 853         struct dvb_demux *demux = feed->demux;
 854         struct av7110 *av7110 = (struct av7110 *) demux->priv;
 855
 856         dprintk(2, "av7110:%p, \n", av7110);
 857
 858         if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
 859                 return 0;
 860
 861         switch (feed->pes_type) {
 862         case 0:
 863                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
 864                         return -EINVAL;
 865                 break;
 866         case 1:
 867                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
 868                         return -EINVAL;
 869                 break;
 870         default:
 871                 return -1;
 872         }
 873
 874         return write_ts_to_decoder(av7110, feed->pes_type, buf, len);
 875 }
 876
 877
 878
 879 /******************************************************************************
 880  * Video MPEG decoder events
 881  ******************************************************************************/
 882 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
 883 {
 884         struct dvb_video_events *events = &av7110->video_events;
 885         int wp;
 886
 887         spin_lock_bh(&events->lock);
 888
 889         wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
 890         if (wp == events->eventr) {
 891                 events->overflow = 1;
 892                 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 893         }
 894
 895         //FIXME: timestamp?
 896         memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
 897         events->eventw = wp;
 898
 899         spin_unlock_bh(&events->lock);
 900
 901         wake_up_interruptible(&events->wait_queue);
 902 }
 903
 904
 905 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
 906 {
 907         struct dvb_video_events *events = &av7110->video_events;
 908
 909         if (events->overflow) {
 910                 events->overflow = 0;
 911                 return -EOVERFLOW;
 912         }
 913         if (events->eventw == events->eventr) {
 914                 int ret;
 915
 916                 if (flags & O_NONBLOCK)
 917                         return -EWOULDBLOCK;
 918
 919                 ret = wait_event_interruptible(events->wait_queue,
 920                                                events->eventw != events->eventr);
 921                 if (ret < 0)
 922                         return ret;
 923         }
 924
 925         spin_lock_bh(&events->lock);
 926
 927         memcpy(event, &events->events[events->eventr],
 928                sizeof(struct video_event));
 929         events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 930
 931         spin_unlock_bh(&events->lock);
 932
 933         return 0;
 934 }
 935
 936
 937 /******************************************************************************
 938  * DVB device file operations
 939  ******************************************************************************/
 940
 941 static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
 942 {
 943         struct dvb_device *dvbdev = file->private_data;
 944         struct av7110 *av7110 = dvbdev->priv;
 945         unsigned int mask = 0;
 946
 947         dprintk(2, "av7110:%p, \n", av7110);
 948
 949         if ((file->f_flags & O_ACCMODE) != O_RDONLY)
 950                 poll_wait(file, &av7110->avout.queue, wait);
 951
 952         poll_wait(file, &av7110->video_events.wait_queue, wait);
 953
 954         if (av7110->video_events.eventw != av7110->video_events.eventr)
 955                 mask = POLLPRI;
 956
 957         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
 958                 if (av7110->playing) {
 959                         if (FREE_COND)
 960                                 mask |= (POLLOUT | POLLWRNORM);
 961                         } else /* if not playing: may play if asked for */
 962                                 mask |= (POLLOUT | POLLWRNORM);
 963         }
 964
 965         return mask;
 966 }
 967
 968 static ssize_t dvb_video_write(struct file *file, const char __user *buf,
 969                                size_t count, loff_t *ppos)
 970 {
 971         struct dvb_device *dvbdev = file->private_data;
 972         struct av7110 *av7110 = dvbdev->priv;
 973         unsigned char c;
 974
 975         dprintk(2, "av7110:%p, \n", av7110);
 976
 977         if ((file->f_flags & O_ACCMODE) == O_RDONLY)
 978                 return -EPERM;
 979
 980         if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
 981                 return -EPERM;
 982
 983         if (get_user(c, buf))
 984                 return -EFAULT;
 985         if (c == 0x47 && count % TS_SIZE == 0)
 986                 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
 987         else
 988                 return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
 989 }
 990
 991 static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
 992 {
 993         struct dvb_device *dvbdev = file->private_data;
 994         struct av7110 *av7110 = dvbdev->priv;
 995         unsigned int mask = 0;
 996
 997         dprintk(2, "av7110:%p, \n", av7110);
 998
 999         poll_wait(file, &av7110->aout.queue, wait);
1000
1001         if (av7110->playing) {
1002                 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
1003                         mask |= (POLLOUT | POLLWRNORM);
1004         } else /* if not playing: may play if asked for */
1005                 mask = (POLLOUT | POLLWRNORM);
1006
1007         return mask;
1008 }
1009
1010 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
1011                                size_t count, loff_t *ppos)
1012 {
1013         struct dvb_device *dvbdev = file->private_data;
1014         struct av7110 *av7110 = dvbdev->priv;
1015         unsigned char c;
1016
1017         dprintk(2, "av7110:%p, \n", av7110);
1018
1019         if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
1020                 printk(KERN_ERR "not audio source memory\n");
1021                 return -EPERM;
1022         }
1023
1024         if (get_user(c, buf))
1025                 return -EFAULT;
1026         if (c == 0x47 && count % TS_SIZE == 0)
1027                 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1028         else
1029                 return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1030 }
1031
1032 static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
1033
1034 #define MIN_IFRAME 400000
1035
1036 static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
1037 {
1038         unsigned i, n;
1039         int progressive = 0;
1040         int match = 0;
1041
1042         dprintk(2, "av7110:%p, \n", av7110);
1043
1044         if (!(av7110->playing & RP_VIDEO)) {
1045                 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
1046                         return -EBUSY;
1047         }
1048
1049         /* search in buf for instances of 00 00 01 b5 1? */
1050         for (i = 0; i < len; i++) {
1051                 unsigned char c;
1052                 if (get_user(c, buf + i))
1053                         return -EFAULT;
1054                 if (match == 5) {
1055                         progressive = c & 0x08;
1056                         match = 0;
1057                 }
1058                 if (c == 0x00) {
1059                         match = (match == 1 || match == 2) ? 2 : 1;
1060                         continue;
1061                 }
1062                 switch (match++) {
1063                 case 2: if (c == 0x01)
1064                                 continue;
1065                         break;
1066                 case 3: if (c == 0xb5)
1067                                 continue;
1068                         break;
1069                 case 4: if ((c & 0xf0) == 0x10)
1070                                 continue;
1071                         break;
1072                 }
1073                 match = 0;
1074         }
1075
1076         /* setting n always > 1, fixes problems when playing stillframes
1077            consisting of I- and P-Frames */
1078         n = MIN_IFRAME / len + 1;
1079
1080         /* FIXME: nonblock? */
1081         dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
1082
1083         for (i = 0; i < n; i++)
1084                 dvb_play(av7110, buf, len, 0, 1);
1085
1086         av7110_ipack_flush(&av7110->ipack[1]);
1087
1088         if (progressive)
1089                 return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1090         else
1091                 return 0;
1092 }
1093
1094
1095 static int dvb_video_ioctl(struct file *file,
1096                            unsigned int cmd, void *parg)
1097 {
1098         struct dvb_device *dvbdev = file->private_data;
1099         struct av7110 *av7110 = dvbdev->priv;
1100         unsigned long arg = (unsigned long) parg;
1101         int ret = 0;
1102
1103         dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1104
1105         if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1106                 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1107                      cmd != VIDEO_GET_SIZE ) {
1108                         return -EPERM;
1109                 }
1110         }
1111
1112         switch (cmd) {
1113         case VIDEO_STOP:
1114                 av7110->videostate.play_state = VIDEO_STOPPED;
1115                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1116                         ret = av7110_av_stop(av7110, RP_VIDEO);
1117                 else
1118                         ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1119                                av7110->videostate.video_blank ? 0 : 1);
1120                 if (!ret)
1121                         av7110->trickmode = TRICK_NONE;
1122                 break;
1123
1124         case VIDEO_PLAY:
1125                 av7110->trickmode = TRICK_NONE;
1126                 if (av7110->videostate.play_state == VIDEO_FREEZED) {
1127                         av7110->videostate.play_state = VIDEO_PLAYING;
1128                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1129                         if (ret)
1130                                 break;
1131                 }
1132                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1133                         if (av7110->playing == RP_AV) {
1134                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1135                                 if (ret)
1136                                         break;
1137                                 av7110->playing &= ~RP_VIDEO;
1138                         }
1139                         ret = av7110_av_start_play(av7110, RP_VIDEO);
1140                 }
1141                 if (!ret)
1142                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1143                 if (!ret)
1144                         av7110->videostate.play_state = VIDEO_PLAYING;
1145                 break;
1146
1147         case VIDEO_FREEZE:
1148                 av7110->videostate.play_state = VIDEO_FREEZED;
1149                 if (av7110->playing & RP_VIDEO)
1150                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1151                 else
1152                         ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1153                 if (!ret)
1154                         av7110->trickmode = TRICK_FREEZE;
1155                 break;
1156
1157         case VIDEO_CONTINUE:
1158                 if (av7110->playing & RP_VIDEO)
1159                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1160                 if (!ret)
1161                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1162                 if (!ret) {
1163                         av7110->videostate.play_state = VIDEO_PLAYING;
1164                         av7110->trickmode = TRICK_NONE;
1165                 }
1166                 break;
1167
1168         case VIDEO_SELECT_SOURCE:
1169                 av7110->videostate.stream_source = (video_stream_source_t) arg;
1170                 break;
1171
1172         case VIDEO_SET_BLANK:
1173                 av7110->videostate.video_blank = (int) arg;
1174                 break;
1175
1176         case VIDEO_GET_STATUS:
1177                 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1178                 break;
1179
1180         case VIDEO_GET_EVENT:
1181                 ret = dvb_video_get_event(av7110, parg, file->f_flags);
1182                 break;
1183
1184         case VIDEO_GET_SIZE:
1185                 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1186                 break;
1187
1188         case VIDEO_SET_DISPLAY_FORMAT:
1189         {
1190                 video_displayformat_t format = (video_displayformat_t) arg;
1191                 switch (format) {
1192                 case VIDEO_PAN_SCAN:
1193                         av7110->display_panscan = VID_PAN_SCAN_PREF;
1194                         break;
1195                 case VIDEO_LETTER_BOX:
1196                         av7110->display_panscan = VID_VC_AND_PS_PREF;
1197                         break;
1198                 case VIDEO_CENTER_CUT_OUT:
1199                         av7110->display_panscan = VID_CENTRE_CUT_PREF;
1200                         break;
1201                 default:
1202                         ret = -EINVAL;
1203                 }
1204                 if (ret < 0)
1205                         break;
1206                 av7110->videostate.display_format = format;
1207                 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1208                                     1, av7110->display_panscan);
1209                 break;
1210         }
1211
1212         case VIDEO_SET_FORMAT:
1213                 if (arg > 1) {
1214                         ret = -EINVAL;
1215                         break;
1216                 }
1217                 av7110->display_ar = arg;
1218                 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1219                                     1, (u16) arg);
1220                 break;
1221
1222         case VIDEO_STILLPICTURE:
1223         {
1224                 struct video_still_picture *pic =
1225                         (struct video_still_picture *) parg;
1226                 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1227                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1228                 ret = play_iframe(av7110, pic->iFrame, pic->size,
1229                                   file->f_flags & O_NONBLOCK);
1230                 break;
1231         }
1232
1233         case VIDEO_FAST_FORWARD:
1234                 //note: arg is ignored by firmware
1235                 if (av7110->playing & RP_VIDEO)
1236                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1237                                             __Scan_I, 2, AV_PES, 0);
1238                 else
1239                         ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1240                 if (!ret) {
1241                         av7110->trickmode = TRICK_FAST;
1242                         av7110->videostate.play_state = VIDEO_PLAYING;
1243                 }
1244                 break;
1245
1246         case VIDEO_SLOWMOTION:
1247                 if (av7110->playing&RP_VIDEO) {
1248                         if (av7110->trickmode != TRICK_SLOW)
1249                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1250                         if (!ret)
1251                                 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1252                 } else {
1253                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1254                         if (!ret)
1255                                 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
1256                         if (!ret)
1257                                 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1258                 }
1259                 if (!ret) {
1260                         av7110->trickmode = TRICK_SLOW;
1261                         av7110->videostate.play_state = VIDEO_PLAYING;
1262                 }
1263                 break;
1264
1265         case VIDEO_GET_CAPABILITIES:
1266                 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1267                         VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1268                 break;
1269
1270         case VIDEO_CLEAR_BUFFER:
1271                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1272                 av7110_ipack_reset(&av7110->ipack[1]);
1273                 if (av7110->playing == RP_AV) {
1274                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1275                                             __Play, 2, AV_PES, 0);
1276                         if (ret)
1277                                 break;
1278                         if (av7110->trickmode == TRICK_FAST)
1279                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1280                                                     __Scan_I, 2, AV_PES, 0);
1281                         if (av7110->trickmode == TRICK_SLOW) {
1282                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1283                                                     __Slow, 2, 0, 0);
1284                                 if (!ret)
1285                                         ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1286                         }
1287                         if (av7110->trickmode == TRICK_FREEZE)
1288                                 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
1289                 }
1290                 break;
1291
1292         case VIDEO_SET_STREAMTYPE:
1293                 break;
1294
1295         default:
1296                 ret = -ENOIOCTLCMD;
1297                 break;
1298         }
1299
1300         return ret;
1301 }
1302
1303 static int dvb_audio_ioctl(struct file *file,
1304                            unsigned int cmd, void *parg)
1305 {
1306         struct dvb_device *dvbdev = file->private_data;
1307         struct av7110 *av7110 = dvbdev->priv;
1308         unsigned long arg = (unsigned long) parg;
1309         int ret = 0;
1310
1311         dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1312
1313         if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1314             (cmd != AUDIO_GET_STATUS))
1315                 return -EPERM;
1316
1317         switch (cmd) {
1318         case AUDIO_STOP:
1319                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1320                         ret = av7110_av_stop(av7110, RP_AUDIO);
1321                 else
1322                         ret = audcom(av7110, AUDIO_CMD_MUTE);
1323                 if (!ret)
1324                         av7110->audiostate.play_state = AUDIO_STOPPED;
1325                 break;
1326
1327         case AUDIO_PLAY:
1328                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1329                         ret = av7110_av_start_play(av7110, RP_AUDIO);
1330                 if (!ret)
1331                         ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1332                 if (!ret)
1333                         av7110->audiostate.play_state = AUDIO_PLAYING;
1334                 break;
1335
1336         case AUDIO_PAUSE:
1337                 ret = audcom(av7110, AUDIO_CMD_MUTE);
1338                 if (!ret)
1339                         av7110->audiostate.play_state = AUDIO_PAUSED;
1340                 break;
1341
1342         case AUDIO_CONTINUE:
1343                 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1344                         av7110->audiostate.play_state = AUDIO_PLAYING;
1345                         ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1346                 }
1347                 break;
1348
1349         case AUDIO_SELECT_SOURCE:
1350                 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1351                 break;
1352
1353         case AUDIO_SET_MUTE:
1354         {
1355                 ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1356                 if (!ret)
1357                         av7110->audiostate.mute_state = (int) arg;
1358                 break;
1359         }
1360
1361         case AUDIO_SET_AV_SYNC:
1362                 av7110->audiostate.AV_sync_state = (int) arg;
1363                 ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1364                 break;
1365
1366         case AUDIO_SET_BYPASS_MODE:
1367                 if (FW_VERSION(av7110->arm_app) < 0x2621)
1368                         ret = -EINVAL;
1369                 av7110->audiostate.bypass_mode = (int)arg;
1370                 break;
1371
1372         case AUDIO_CHANNEL_SELECT:
1373                 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1374                 switch(av7110->audiostate.channel_select) {
1375                 case AUDIO_STEREO:
1376                         ret = audcom(av7110, AUDIO_CMD_STEREO);
1377                         if (!ret) {
1378                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1379                                         i2c_writereg(av7110, 0x20, 0x02, 0x49);
1380                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1381                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1382                         }
1383                         break;
1384                 case AUDIO_MONO_LEFT:
1385                         ret = audcom(av7110, AUDIO_CMD_MONO_L);
1386                         if (!ret) {
1387                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1388                                         i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1389                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1390                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1391                         }
1392                         break;
1393                 case AUDIO_MONO_RIGHT:
1394                         ret = audcom(av7110, AUDIO_CMD_MONO_R);
1395                         if (!ret) {
1396                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1397                                         i2c_writereg(av7110, 0x20, 0x02, 0x45);
1398                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1399                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1400                         }
1401                         break;
1402                 default:
1403                         ret = -EINVAL;
1404                         break;
1405                 }
1406                 break;
1407
1408         case AUDIO_GET_STATUS:
1409                 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1410                 break;
1411
1412         case AUDIO_GET_CAPABILITIES:
1413                 if (FW_VERSION(av7110->arm_app) < 0x2621)
1414                         *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1415                 else
1416                         *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1417                                                 AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1418                 break;
1419
1420         case AUDIO_CLEAR_BUFFER:
1421                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1422                 av7110_ipack_reset(&av7110->ipack[0]);
1423                 if (av7110->playing == RP_AV)
1424                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1425                                             __Play, 2, AV_PES, 0);
1426                 break;
1427
1428         case AUDIO_SET_ID:
1429                 break;
1430
1431         case AUDIO_SET_MIXER:
1432         {
1433                 struct audio_mixer *amix = (struct audio_mixer *)parg;
1434                 ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1435                 break;
1436         }
1437
1438         case AUDIO_SET_STREAMTYPE:
1439                 break;
1440
1441         default:
1442                 ret = -ENOIOCTLCMD;
1443         }
1444
1445         return ret;
1446 }
1447
1448
1449 static int dvb_video_open(struct inode *inode, struct file *file)
1450 {
1451         struct dvb_device *dvbdev = file->private_data;
1452         struct av7110 *av7110 = dvbdev->priv;
1453         int err;
1454
1455         dprintk(2, "av7110:%p, \n", av7110);
1456
1457         if ((err = dvb_generic_open(inode, file)) < 0)
1458                 return err;
1459
1460         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1461                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1462                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1463                 av7110->video_blank = 1;
1464                 av7110->audiostate.AV_sync_state = 1;
1465                 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1466
1467                 /*  empty event queue */
1468                 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1469         }
1470
1471         return 0;
1472 }
1473
1474 static int dvb_video_release(struct inode *inode, struct file *file)
1475 {
1476         struct dvb_device *dvbdev = file->private_data;
1477         struct av7110 *av7110 = dvbdev->priv;
1478
1479         dprintk(2, "av7110:%p, \n", av7110);
1480
1481         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1482                 av7110_av_stop(av7110, RP_VIDEO);
1483         }
1484
1485         return dvb_generic_release(inode, file);
1486 }
1487
1488 static int dvb_audio_open(struct inode *inode, struct file *file)
1489 {
1490         struct dvb_device *dvbdev = file->private_data;
1491         struct av7110 *av7110 = dvbdev->priv;
1492         int err = dvb_generic_open(inode, file);
1493
1494         dprintk(2, "av7110:%p, \n", av7110);
1495
1496         if (err < 0)
1497                 return err;
1498         dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1499         av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1500         return 0;
1501 }
1502
1503 static int dvb_audio_release(struct inode *inode, struct file *file)
1504 {
1505         struct dvb_device *dvbdev = file->private_data;
1506         struct av7110 *av7110 = dvbdev->priv;
1507
1508         dprintk(2, "av7110:%p, \n", av7110);
1509
1510         av7110_av_stop(av7110, RP_AUDIO);
1511         return dvb_generic_release(inode, file);
1512 }
1513
1514
1515
1516 /******************************************************************************
1517  * driver registration
1518  ******************************************************************************/
1519
1520 static const struct file_operations dvb_video_fops = {
1521         .owner          = THIS_MODULE,
1522         .write          = dvb_video_write,
1523         .unlocked_ioctl = dvb_generic_ioctl,
1524         .open           = dvb_video_open,
1525         .release        = dvb_video_release,
1526         .poll           = dvb_video_poll,
1527         .llseek         = noop_llseek,
1528 };
1529
1530 static struct dvb_device dvbdev_video = {
1531         .priv           = NULL,
1532         .users          = 6,
1533         .readers        = 5,    /* arbitrary */
1534         .writers        = 1,
1535         .fops           = &dvb_video_fops,
1536         .kernel_ioctl   = dvb_video_ioctl,
1537 };
1538
1539 static const struct file_operations dvb_audio_fops = {
1540         .owner          = THIS_MODULE,
1541         .write          = dvb_audio_write,
1542         .unlocked_ioctl = dvb_generic_ioctl,
1543         .open           = dvb_audio_open,
1544         .release        = dvb_audio_release,
1545         .poll           = dvb_audio_poll,
1546         .llseek         = noop_llseek,
1547 };
1548
1549 static struct dvb_device dvbdev_audio = {
1550         .priv           = NULL,
1551         .users          = 1,
1552         .writers        = 1,
1553         .fops           = &dvb_audio_fops,
1554         .kernel_ioctl   = dvb_audio_ioctl,
1555 };
1556
1557
1558 int av7110_av_register(struct av7110 *av7110)
1559 {
1560         av7110->audiostate.AV_sync_state = 0;
1561         av7110->audiostate.mute_state = 0;
1562         av7110->audiostate.play_state = AUDIO_STOPPED;
1563         av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1564         av7110->audiostate.channel_select = AUDIO_STEREO;
1565         av7110->audiostate.bypass_mode = 0;
1566
1567         av7110->videostate.video_blank = 0;
1568         av7110->videostate.play_state = VIDEO_STOPPED;
1569         av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1570         av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1571         av7110->videostate.display_format = VIDEO_LETTER_BOX;
1572         av7110->display_ar = VIDEO_FORMAT_4_3;
1573         av7110->display_panscan = VID_VC_AND_PS_PREF;
1574
1575         init_waitqueue_head(&av7110->video_events.wait_queue);
1576         spin_lock_init(&av7110->video_events.lock);
1577         av7110->video_events.eventw = av7110->video_events.eventr = 0;
1578         av7110->video_events.overflow = 0;
1579         memset(&av7110->video_size, 0, sizeof (video_size_t));
1580
1581         dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1582                             &dvbdev_video, av7110, DVB_DEVICE_VIDEO);
1583
1584         dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1585                             &dvbdev_audio, av7110, DVB_DEVICE_AUDIO);
1586
1587         return 0;
1588 }
1589
1590 void av7110_av_unregister(struct av7110 *av7110)
1591 {
1592         dvb_unregister_device(av7110->audio_dev);
1593         dvb_unregister_device(av7110->video_dev);
1594 }
1595
1596 int av7110_av_init(struct av7110 *av7110)
1597 {
1598         void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1599         int i, ret;
1600
1601         for (i = 0; i < 2; i++) {
1602                 struct ipack *ipack = av7110->ipack + i;
1603
1604                 ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1605                 if (ret < 0) {
1606                         if (i)
1607                                 av7110_ipack_free(--ipack);
1608                         goto out;
1609                 }
1610                 ipack->data = av7110;
1611         }
1612
1613         dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1614         dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1615
1616         av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1617         av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1618 out:
1619         return ret;
1620 }
1621
1622 void av7110_av_exit(struct av7110 *av7110)
1623 {
1624         av7110_ipack_free(&av7110->ipack[0]);
1625         av7110_ipack_free(&av7110->ipack[1]);
1626 }